A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_time of the file send_packets.c. Such manipulation leads to divide by zero. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 4.5.3-beta3 is recommended to address this issue. It is advisable to upgrade the affected component. The vendor confirms in a GitHub issue reply: "Was able to reproduce in 6fcbf03 but NOT 4.5.3-beta3."

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-9649
• appneta/tcpreplay#968
• appneta/tcpreplay#968 (comment)
• https://drive.google.com/file/d/16QQtZvUrMbF-i_1cGt5hNWmkn-YVyBOM/view?usp=sharing
• https://vuldb.com/?ctiid.321855
• https://vuldb.com/?id.321855
• https://vuldb.com/?submit.630493
• https://vuldb.com/?submit.630494